What flow rate does a reservoir cannula typically provide?

A reservoir cannula is designed to provide supplemental oxygen to patients while maximizing efficiency and comfort. Typically, the flow rate for a reservoir cannula is around 1-4 liters per minute. This range allows for sufficient oxygen delivery to meet the needs of patients who may have varying levels of respiratory distress or oxygenation requirements.

The design of a reservoir cannula includes a small reservoir that captures exhaled air and allows for rebreathing, which enhances the overall oxygen concentration available to the patient. By operating within this flow rate, the device effectively maintains the necessary oxygen levels without overwhelming the patient's respiratory system.

Other options depict flow rates that are either too low or too high for a reservoir cannula. Operating outside the 1-4 L/min range may not provide adequate oxygenation for patients requiring supplemental oxygen or could lead to discomfort due to overly high flow rates. Therefore, the specified flow rate range of 1-4 L/min aligns with the intended use and functionality of a reservoir cannula.